1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.eclipse.aether.named.providers;
20
21 import javax.inject.Named;
22 import javax.inject.Singleton;
23
24 import java.util.concurrent.TimeUnit;
25
26 import org.eclipse.aether.named.support.NamedLockFactorySupport;
27 import org.eclipse.aether.named.support.NamedLockSupport;
28
29 /**
30 * A no-op lock factory, that creates no-op locks.
31 */
32 @Singleton
33 @Named(NoopNamedLockFactory.NAME)
34 public class NoopNamedLockFactory extends NamedLockFactorySupport {
35 public static final String NAME = "noop";
36
37 @Override
38 protected NoopNamedLock createLock(final String name) {
39 return new NoopNamedLock(name, this);
40 }
41
42 private static final class NoopNamedLock extends NamedLockSupport {
43 private NoopNamedLock(final String name, final NamedLockFactorySupport factory) {
44 super(name, factory);
45 }
46
47 @Override
48 protected boolean doLockShared(final long time, final TimeUnit unit) {
49 return true;
50 }
51
52 @Override
53 protected boolean doLockExclusively(final long time, final TimeUnit unit) {
54 return true;
55 }
56
57 @Override
58 protected void doUnlock() {
59 // no-op
60 }
61 }
62 }